Extension-table.



D. P ROUKEFELLER. EXTENSION TABLE.

APPLICATION FILED APB. 13,1906.

PATENTED MAY 14, 1907.

2 SHEET SSHEET 2 @nuenboz DAVID P. ROGKEFELLER, OF SUNBURY,PENNSYLVANIA.

EXTENSION-TABLE.

Specification of Letters Patent.

Patented May 14, 1907.

plieation filed April 13, 1906- Serial No. 311,605-

To to whom it may concern.-

Be it known that 1, DAVID P. RooKEFEL- LER, a citizen of the UnitedStates, residing at Sunbury, in the county of N orthumberland, State ofPennsylvania, have invented certain new and useful Improvements inExtension-Tables; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in extension tables, and itsprimary object is to provide a device of this character which is simplein construction, durable and easily manufactured.

It is well known that in solid pedestal extension tables, and inparticular those of the larger sizes, as for instance, an eight foottable the table tops when moved beyond the direct support of thepedestal braces require some additional supporting means, as the meredove-tail and key-connection between the top and cross beam braces ishardly suflicient to bear the weight of heavy tops.

It is the purpose of this invention therefore to construct an extensiontable which may be made in the larger sizes and in which this defectwill not be present.

To this end the improvement consists in the provision of a supplementalrail running intermediate the pedestal braces and serving as a trackupon which a pair of grooved floating braces are slidably mounted, oneof said floating braces beingdisposed at each end of the supplementalrail, whereby the weight of the tops will be borne in great part by therail and braces and the tops themselves firmly supported in anyposition.

With this and other objects in view, the invention consists in theconstruction, combination and arrangement of parts all as hereinafterfully described pointed out in the claims and illustrated in theaccompanying drawings.

In the drawings, Figure 1 is a top plan view of the table in itsextended position. Fig. 2 is a bottom view of the same. Fig. 3 is atransverse section on the line Fig. 1. Fig. 1 is a longitudinal sectionon the line 4 4c of F 1. Fig. 5 is a detail view in perspective of oneof the floating braces.

' Like parts are designated by similar numorals in the several views.

Referring to the drawings, 7 designates'the pedestal of the table whichis provided at its top with a cross beam 8, secured thereto by bolts orother preferred means. The opposite ends of the cross beam have securedthereto the braces 9 which are provided on their opposite sides withdove-tailed grooves 10, as shown. Said braces extend. transversely ofthe cross beam 8 and beyond the opposite sides thereof.

The upper face of the pedestal is provided with a transverse slotextending parallel with the braces, a beam 11 being secured in said slotand provided on its upper face with a seat in which the cross beam 8 isreceived, the upper face of beam 11 being flush with that of cross beam8. Carried upon the up per face of said beam 11 and extendingtransversely of the cross beam 8 and parallel with braces 9 is a rail 12grooved on both sides as shown and secured by any preferred means Theopposlte ends of braces.

to said beam. 9 and rail 12 are connected together by cross pieces 13secured thereto in any preferred manner.

Numerals 14 and 15 refer respectively to the two sections of the tabletop, each top having attached to its under surface a pair of strips, 16and 17. The strips 16 of top 14 are grooved on their outer faces asshown, and said strips are slidable along the inner face of braces 9,there being a key 18 fitting in the grooves of said strips and braces bymeans of which two are retained in proper position. The strips 17 of top15 are in like manner grooved on their inner faces as shown, and areslidable upon the outer face of braces 9 in like manner, there being akey 19 retained in the respective grooves similarly to key 18.

Slidable upon each end of rail 12 is a floating brace 20 provided withguide grooves upon its under face in which the rail shoulders fit. Astop 21 is secured to the under face of each table top in the path ofmovement of the floating braces and serves to limit the outward movementthereof, the upper face of each floating bracebeing slightly under-cutto form a shoulder 22 upon the outer end thereof to contact with stop21.

It will be seen from Figs. .1 and 4 that when the table is in itsextended position, the tops are practically beyond the direct support ofthe cross beam and are merely held. in place by the key-connectionbetween the cross beam braces and the top strips. By the provisionhowever of the rail 12 and the floating brace slidable upon the ends ofsaid rail, an

additiomrl support For the top is obtained since said tops bear directlby means of the floating braces upon the rail which is connected withthe pedestal. Each top will therefore besup' 'iorted at threedistinotpoints instead of two only, as has been heretofore the case.

lllurther description of the operation of the device is thought to beunnecessary.

What is cl aimed, is

1. In an extension table, the con'ibination of a pedestal a cross beam.mounted thereon braces attached to the upper face of said cross beam,and extending transversely thereof; a rail attached to said cross beainintermediate said braces; tops; strips secured. to the under face ofeach top; the strips of one top being slidable along the inner sides ofsaid braces and the strips of the other top being slidable along theouter sides of said braces; a floating brace slidable upon each end ofsaid rail; and means upon the under face of each top to limit themovement of the corresponding floating brace.

2. 111 an extension table, the combination of a pedestal; a cross beammounted thereon; braces attacl'ied to the upper face of said cross beamand extending transversely of said cross beam; guide grooves 'l'ori'nedon the opposite sides o'l said braces; a rail attached to the upper'lace oi? said cross beam between said braces, and extending iaralleltherewitl'i; tops; a pair o'l strips secured to the under face of eachtop the strips of one top being slidable along the inner sides of saidbraces, and the strips 01" the other top being slidable along the outersides of said braces, and eacl'i pair of strips being provided on itssides adjacent the braces with guide grooves alining with the grooves inthe braces; a key slidable in each pair of alining grooves; a groovedfloating brace slidable upon the upper face of said rail; and meanssecured to the under face of each top for limiting the movement of thecorresponding floating brace.

In testimony whereof, I aflix my signature,

,in presence of two Witnesses.

DAVID P. ROCKEFELLER. Witnesses:

L. R. Hnenns, J. S. ALs'roiv.

